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COMMITMENTS AND CONTINGENCIES (Details Narrative)	1 Months Ended	12 Months Ended
	Nov. 30, 2016	May 31, 2024 USD ($) ft²	May 31, 2023 USD ($) ft²
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Lease area | ft²		22,000	8,100
Lease term description	In November 2016, the Company’s Mexican subsidiary, Biomerica de Mexico, entered into a 10-year lease for approximately 8,100 square feet of manufacturing space. The Company has one 10-year option to renew at the end of the initial lease period. Biomerica de Mexico also leases a smaller unit on a month-to-month basis for use in the Company’s manufacturing process
Operating lease term	10 years
Operating lease renewal term	10 years
Royalty Agreements [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Royalty expense		$ 10,000	$ 13,000
Royalty expense percentage of sales		1.00%	2.00%
Building in Irvine California [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Security deposit		$ 22,000

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
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Description of lessee's operating lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Publisher FASB
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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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